HighFix available
gzip, xz — security advisory
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
- Products
- gzip, xz
- Affected versions
- Not specified
- Fixed versions
- 1.12-r0, 5.2.5-r1
- CVEs
- CVE-2022-1271
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:09 UTC · Revision 1
Source evidence
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
osv:ALPINE-CVE-2022-1271
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
gzip
Fixed versions: 1.12-r0
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
xz
Fixed versions: 5.2.5-r1
Complete source record
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"fixed": "5.2.5-r1"
}
]
}
],
"package": {
"name": "xz",
"purl": "pkg:apk/alpine/xz?arch=source",
"ecosystem": "Alpine:v3.22"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-1271.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.2.5-r1"
}
]
}
],
"package": {
"name": "xz",
"purl": "pkg:apk/alpine/xz?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-1271.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.2.5-r1"
}
]
}
],
"package": {
"name": "xz",
"purl": "pkg:apk/alpine/xz?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-1271.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-15T07:17:54.151921060Z",
"provider": "osv",
"upstream": [
"CVE-2022-1271"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2022-1271"
]
},
"related_cves": [
{
"value": "CVE-2022-1271",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 321629,
"published_at": "2022-08-31T16:15:09.347+00:00"
}